Outsourced accounting services for UK businesses: What they cover and how they work

Invoices, payroll, VAT and reporting have a habit of landing on the same desk. As a business grows, keeping the numbers in order can eat into time you'd rather spend running it. But a full-time finance team may be a bit much for the workload.

Outsourced accounting services can take some of those jobs off your plate, from bookkeeping and reconciliations to regular reporting. You choose the support you need, whether that's a few recurring tasks or a wider finance function.

Here, we'll explain how it works, what affects the cost and what to look for in a provider.

The short answer: What outsourced accounting can cover

In short, outsourced accounting means bringing in an external provider to handle some or all of your finance work. That might include bookkeeping, bank reconciliations, accounts payable and receivable, payroll support, VAT preparation or management reports.

You can hand over a few recurring jobs or ask for broader support. There's no one-size-fits-all package: a sole trader with tidy records needs something different from a growing company with staff, suppliers and monthly reporting to manage.

Agree what the provider will do, what your team will review and who handles each deadline. That way, everyone knows where the numbers and responsibilities sit.

Diving deep - What outsourced accounting services include

Outsourced accounting means bringing in an external provider to handle agreed finance work. You can delegate a few recurring tasks or get broader support across your finance function.

Common services

Depending on the provider and your agreement, support may include:

• Bookkeeping and bank reconciliations

• Accounts payable and receivable

• Payroll support and VAT preparation

• Management reports and financial analysis

• Year-end accounts preparation

How it differs from other accounting support

An employee works as part of your team, and you manage their workload. With an outsourced service, the provider arranges delivery of the agreed work. That can mean support throughout the year, rather than bringing in an accountant only to prepare year-end accounts.

Bookkeeping is one part of accounting: it records transactions, reconciles accounts and keeps financial records up to date. Accounting uses those records to prepare reports, review performance and support planning.

If bookkeeping is the main help you need, see our guide to outsourced bookkeeping services for UK businesses for a closer look at the tasks, costs and options.

Accounting tasks a UK business can outsource

You don't have to hand over the whole finance function. Many businesses start with the jobs that take up time each week or month, then add support if their needs change. Depending on the provider, you may be able to outsource:

• Bookkeeping and bank reconciliations: Recording income and expenses, organising receipts and checking bank transactions against your accounting records.

• Accounts payable and receivable: Processing supplier invoices, preparing customer invoices and keeping track of what's due in or needs paying.

• Payroll support: Preparing payroll information and calculations. Check whether the provider also handles payslips, pension contributions, payroll reporting or submissions.

• VAT records and return preparation: Maintaining VAT records and preparing figures for review. Agree who checks and submits each return.

• Month-end and management accounts: Closing the books regularly and preparing reports that show income, costs, cash position and performance.

• Year-end preparation and financial reporting: Organising records and supporting documents for year-end accounts and preparing reports required by the business or its accountant.

• Budgeting, cash-flow forecasts and analysis: Building forecasts from your figures and highlighting patterns or gaps to discuss with your accountant or finance lead.

The right mix depends on your workload. One business may need help with reconciliations; another may want regular reports and forecasting as well. Providers differ, too, so check exactly what's included, who reviews the work and who is responsible for submissions before agreeing the scope.

How accounting outsourcing works

The process is straightforward when everyone knows who's doing what, when it's due and who checks the work. Here's how an accounting outsourcing arrangement usually gets going.

1. Agree the work and responsibilities

List the tasks you want covered, how often they need doing and when they're due. Agree what your provider handles, what stays with your team and who reviews or submits each item.

2. Set up access to your records and software

Give the provider individual logins with permissions suited to their work. Agree how you'll share invoices, receipts and other documents, and who to contact if access stops working.

3. Explain how your business handles its finances

Share the processes, coding rules, approval steps and reports you already use. Mention any quirks in your setup now, rather than waiting for them to crop up at month-end.

4. Let the provider complete the agreed tasks

Your provider processes the records, prepares reports or carries out other agreed work. They should flag missing information, unusual transactions or anything that needs your decision, using a communication route you've both agreed.

5. Review the work and act on it

Check the completed work at agreed points. Approve submissions or business decisions where needed and use the reports to plan next steps.

Allow time for questions as the arrangement settles in. Clear ownership, regular communication and review points help prevent small queries from turning into a month-end muddle.

Why UK SMEs outsource accounting

Accounting admin has a way of creeping into the working week. Monzo Business's 2026 Money Moves Report found that UK SMEs spend an average of 53 minutes each working day on financial admin. Nearly half said it takes too long, and 39% said it holds back growth. It helps explain why businesses look for extra support.

Common reasons include:

• Extra capacity without a full finance team: Hand over regular tasks when the workload doesn't justify hiring several in-house specialists.

• Skills when you need them: Bring in support for areas such as payroll, management accounts or cash-flow forecasting, without expecting the business owner to become the finance department.

• More organised financial information: Regular processing and reporting can make it easier to see what's owed, what's due and how the business is doing.

• Support that can adjust: If transaction volumes or reporting needs change, the agreed service may be adjusted too. Check how changes affect the scope and cost.

• More time for the rest of the business: With routine finance work covered, owners and teams can give more attention to customers, sales and operations.

Outsourcing still needs clear instructions and oversight. Agree who handles each task, who checks the work and how often you'll review the arrangement.

What to consider before outsourcing accounting

Handing over finance tasks means sharing sensitive information and relying on someone else to meet deadlines. Agreeing a few basics upfront helps keep the arrangement clear and comfortable.

1. Protecting sensitive financial data

Ask how the provider stores and shares your records. Give each person an individual login with access limited to their tasks, and agree how access will be removed if the arrangement ends.

2. Keeping visibility of the work

Agree what updates and reports you'll receive, and how often. Regular check-ins help you review completed work, ask questions and see what's still outstanding.

3. Setting turnaround times

Decide when routine work is due, how quickly queries should be answered and how urgent issues will be handled. Make sure you know who to contact if something needs attention.

4. Checking UK experience and software knowledge

Ask about the provider's experience with UK businesses, relevant VAT or payroll processes, and software such as Xero, QuickBooks or Sage. Be clear about whether they prepare information, review it or submit it.

5. Planning for continuity

Find out who covers the work if your usual contact is away. Keep processes documented, and agree how your records and work will be handed back if you change providers.

Clear responsibilities and review routines make it easier to keep an eye on your finances, even when someone else handles the day-to-day work.

How much do outsourced accounting services cost in the UK?

Accounting fees can vary quite a bit because "accounting support" can mean anything from a few hours of help to regular work across several finance tasks. For small UK businesses, Xero's guide puts monthly retainers at £75-£300 and hourly accounting rates at £50-£200. Those figures cover different levels of support, so the useful question is what you get for the fee.

What does a monthly fee cover?

A fixed monthly fee can cover an agreed list of recurring tasks. That might be bookkeeping and year-end accounts, or a wider package with VAT returns and payroll. Management accounts, forecasting and extra advice may cost more.

Check the list of included work before comparing packages; the headline price won't tell you whether it covers the jobs sitting on your desk.

Why do quotes vary?

Your quote will reflect the amount and type of work involved, including:

• How many transactions, bank accounts and employees you have.

• Whether you need bookkeeping, payroll, VAT, year-end accounts or regular reporting.

• How often you want the work completed.

• Whether your records are organised or need a tidy-up.

• Any software, setup or extra work charged separately.

A small business with straightforward records will usually need less support than one with frequent transactions, payroll and monthly reporting.

Which pricing model suits your business?

If you need the same work each month, a fixed fee makes budgeting easier. Hourly or project pricing can suit a one-off job or occasional support.

Ask for the same tasks to be priced by each provider, and check what happens if your workload changes. That way, you can see what the fee covers before agreeing to it.

Outsourced accounting vs in-house support

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A dedicated remote Accountant can work much like an in-house colleague: they learn your processes, work with your team and focus on your business. The difference is that they're based overseas, and an EOR partner handles their local employment administration.

That can make the model considerably more affordable for a UK business. For example, with Black Piano, an Executive Accountant salary in India is around £833 a month, compared with £2,500 in the UK - a 67% salary saving. But are we just an EOR? Not really. More on that later!

Build your accounting support with Black Piano

At Black Piano, we help UK businesses build finance capacity in two ways: hire a dedicated remote Accountant through EOR or ask us to manage agreed accounting work through outsourcing. The right fit depends on how you want the work handled.

Hire a dedicated remote Accountant

We find suitable Accountants in India, and you choose the person who fits your business. They join your team, learn your processes and work under your direction. We employ them locally and look after contracts, payroll, compliance and ongoing HR support.

You get a dedicated person building knowledge of your business, with day-to-day work managed by you. With savings of up to 70%, this is clearly a cost-effective way to add dedicated accounting expertise to your team.

Choose managed outsourcing

If you'd rather hand over defined accounting work, we can arrange an outsourced team to manage delivery. We agree the tasks, deadlines, reporting and quality measures with you, then take responsibility for completing the work. You keep oversight of your finances and make the business decisions.

A dedicated hire suits you when you want someone working as part of your team. Managed outsourcing suits you when you want an external provider to deliver agreed work. We can talk through your workload and help you choose the arrangement that fits.

Learn more - Offshoring vs. outsourcing vs. employer of record (EOR)

How to choose and onboard an outsourced accounting provider – A quick checklist

• Define the work: List the tasks, deadlines and reports you need. Be clear about what stays with your team.

• Check UK experience: Ask about their experience with UK businesses and the VAT or payroll requirements relevant to you.

• Confirm software skills: Make sure they know your accounting software and any connected systems you use.

• Agree access and security: Set up individual logins with suitable permissions. Ask how the provider protects and returns your records.

• Set communication routines: Choose a main contact and agree how they'll flag queries, missing documents and urgent issues.

• Clarify responsibilities: Decide who checks the work, approves submissions and follows up on anything outstanding.

• Plan for cover: Find out who handles the work if your usual contact is away.

• Schedule a review: Share your processes and reporting preferences, then check in after the first month to sort out any snags.

Choose accounting support that fits your business

Outsourced accounting services can take a few recurring tasks off your plate or cover a wider part of your finance function. The right setup depends on how much support you need and how closely you want to manage the work. You might prefer a provider to handle agreed tasks, or a dedicated Accountant who works as part of your team.

At Black Piano, we help UK businesses explore both options. Contact us to talk through your accounting needs and find the right support for your business.

Outsourced accounting FAQs

Should I outsource my accounting as a small business?

Yes, if accounting tasks are taking time away from running the business and you need regular support without building a full finance team. You can outsource specific work or agree broader support with a provider. If you'd rather have an Accountant work as part of your team, we can help you hire a dedicated remote Accountant through EOR.

Can I outsource only some accounting tasks?

Yes. You could outsource bookkeeping or payroll support and keep other finance work in-house. Agree which tasks the provider handles, what stays with your team and who reviews the work. At Black Piano, we can discuss managed outsourcing for agreed work or help you hire a dedicated remote Bookkeeper or Accountant to take on an ongoing role in your business.

Can an outsourced accountant work with my existing accountant?

Yes. The outsourced Accountant can handle agreed tasks and share records, reports and queries with your existing accountant. Set clear responsibilities so work isn't duplicated or missed. A dedicated Accountant hired through Black Piano can also work with your current adviser, becoming a part of your team, following your processes and preparing information for their review.

Can an overseas accountant support a UK business?

Yes, provided they have the right experience for the work and understand the UK requirements involved. Check their knowledge of your software, reporting needs and relevant VAT or payroll processes.

Through an end-to-end EOR process, we help UK businesses find and hire specialist Accountants in India and support the employment relationship while the Accountant works as part of their team.