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UK accounting services built for growth

Bookkeeping, accounts & tax handled end to end. From £75/month*.

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2,800+ UK founders trust Sleek with their accounts

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Everything your company needs, in one place

ACCA and AAT qualified accountants

A full audit trail, from draft to filing

One fixed fee, and no surprise invoices

Accounting plans that grow with you

Switch to Sleek and ‎‎ save 20%  on annual accounting, with reliable support and full compliance.
Save 10%
Recommended
Starter
Compliance off your plate
£900
/yr
£75/mo
with monthly
Turnover up to £90,000/yr
SG$650
Save 15%
*Annual billing only
Recommended
Scale
No quarterly guesswork
£130
£130
/mo
£1,560/yr
with monthly
Turnover up to £90,000/yr
SG$650
Save 15%
10% OFF
Most Chosen
Recommended
Pro
Built for active trading
£2,160
£200
/mo
£2,400/yr
with monthly
Turnover up to £200,000/yr
SG$650
Save 15%
15% OFF
Recommended
Enterprise
Advice when decisions matter
£300
£399
/mo
£4,788/yr
with monthly
Turnover up to £500,000/yr
SG$650
Save 15%
10% OFF
Show key differences only
Feature
Starter
Scale
Pro
Most Popular
Enterprise
BOOKKEEPING
Bookkeeping Frequency
Annual
Quarterly
Monthly
Monthly
Quarterly Management Accounts
TAX
Year-end accounts
Corporation tax return
Confirmation statement
Self-assessment (1×)
Self-assessment (2×)
VAT
VAT registration
VAT quarterly filing
Support & Advisory
Response SLA
72h
48h
24h
Same-day
Quarterly Advisory Call
Add-ons
Extra self assessment tax return
£275 /fy
Monthly management reports
£100/mo
Xero Subscription
£375 /fy
Payroll
£85/yr*
*per employee, billed at renewal. Mid-year additions: £8 per payslip
Monthly Yearly (Save more)
Accounting Basic
Ideal for entrepreneurs just starting out who need to stay compliant with expert bookkeeping support.

From

£900
£720
Covers all essentials:
20% OFF
Accounting Pro (includes VAT filing & Payroll)
Perfect for businesses focused on growth, requiring monthly bookkeeping, payroll, and tax compliance.

From

£1,248
£960
Full service accounting:
20% OFF
Accounting Pro
(includes VAT filing & Payroll)
From £100/mo*
Bookkeeping
Annual
Monthly
Xero Subscription
Confirmation Statement
Year-end accounts & Tax Return
Dedicated Accountant
Director’s Tax Return
£250/financial year
VAT filing
Payroll & Pension filing 1-5 employees
Multi-currency support
£10/month
£10/month
backdated bookkeeping
£750/fy (up to 100 transactions)
£750/fy (up to 100 transactions)
*For financial years ending in under 3 months, a minimum 3-month purchase of the monthly accounting plan is required.

Not sure which plan is right for your business?

DIY with AI or Sleek Accounting?

DIY WITH AI
Cheaper in pounds. The hours and the risk are yours.
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Same AI. A qualified accountant answers for it.

Every filing goes through a qualified accountant

01

Your accounts connect

Bank feed and Dext receipts flow in continuously. No monthly upload ritual.

02

The first pass is drafted

Transactions coded, accounts reconciled and the corporation tax return prepared, by AI, in minutes.

03

Your accountant signs off

A qualified human reviews the draft, corrects what AI got wrong, and files.

04

You see the trail

The full record — what AI did, what your accountant changed, what went to HMRC.

Meet the accountants who sign your filings

Switching accountants is four steps. You do one.

01

You book a call

We look at where your accounts stand and recommend a tier.

02

We do the handover

We write to your current accountant and collect your records. You stay out of it.

03

Your books get rebuilt

Your accountant checks an AI-rebuilt ledger and clears any late filings.

04

You are up and running

Most switches finish inside a fortnight, with your next deadline already scheduled.

Ready to get started?

Helpful accounting guides for UK business owners

FAQs on accounting services UK

Can I keep the Xero subscription I already pay for?

Yes. If you already pay Xero directly, skip the £375 a year add-on and we work in your existing file. We use Dext alongside it for receipts, which is included.

What happens if I have missed filing deadlines already?

We take on companies in arrears regularly. AI reconstructs the backlog from your records and a qualified accountant reviews it before anything reaches HMRC or Companies House, quoted separately, then you go back on a normal filing calendar.

What if my revenue goes over my plan's cap?

We move you to the plan your turnover fits and charge the difference, rather than letting you sit on a plan that no longer covers the work. Starter and Scale cover up to £90,000, Pro up to £200,000 and Enterprise up to £500,000.

Can I use Sleek if I live outside the UK?

Yes. A UK limited company has no residency requirement for directors or shareholders, and we handle HMRC and Companies House correspondence for founders running their company from abroad.

Do you handle payroll and workplace pensions?

Yes, as a payroll add-on at £8 per payslip per month. That covers PAYE filings and auto-enrolment setup so you meet your obligations as an employer.

Need more information?

Browse our articles for in-depth guides, expert tips, and the latest updates on UK business essentials.
Carles M,
Sleek Advisor

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