UK-registered accountancy company
Ostoya Accountancy Limited is registered under company number 16813071 and is based in Swaffham, Norfolk.
About us→
Accurate Numbers. Stronger Business.
Straightforward Accounting Support for UK Small Businesses
From bookkeeping and VAT to payroll and tax returns, we provide practical, reliable support to help you stay on top of your business finances.
Based in Swaffham, Norfolk. Supporting businesses across the UK in English and Polish.
Services to simplify your finances
Bookkeeping, VAT returns and payroll — focused on accuracy, compliance and timely processing.
Verified business details
Clear credentials and service commitments
Ostoya Accountancy Limited is a UK-registered accountancy company led by an AAT-licensed accountant. We support clients in English and Polish, locally from Swaffham and remotely across the UK, with every engagement confirmed in writing before work begins.
English and Polish support
Client communication and day-to-day accountancy support are available in both English and Polish.
Written scope before work begins
Before work starts, we confirm the agreed services, responsibilities and quote in writing, so you know exactly what is included.
AAT-licensed accountant
Accountancy work is led by Monika Mikulska MAAT under AAT public-practice licence number 1006375.
View AAT accreditation detailsOstoya Accountancy Limited — company number 16813071. AAT public-practice licence number 1006375.
Switching to Ostoya is Painless
Don't let admin fear stop you. We handle the awkward breakup for you.
1
You say 'Go'
Fill out a quick form or message us on WhatsApp to start.
2
We handle the handover
We contact your old accountant to get your records. No awkward calls for you.
3
You are onboarded
We help set up your accounting software and support your transition to digital record-keeping.
Frequently Asked Questions
Everything you need to know about working with us.
I am behind on my taxes. Can you help?
Yes. We specialize in 'rescue bookkeeping'. We will deal with HMRC, organize your shoebox of receipts, and get you up to date fast.
Do you work with Xero or QuickBooks?
Yes. We support businesses using Xero and QuickBooks. Any software subscription, setup or migration cost is confirmed separately in your written quote.
Are you just online, or can I meet you?
We are a digital-first practice serving the whole UK, but we are based in Swaffham. Locals are welcome to meet us for a coffee!
How do I send you my invoices?
It's easy. You can snap a photo via an app, email them to a dedicated address, or upload them to a secure portal. No paper needed.
What makes you different from a standard accountant?
We focus on practical, proactive support. Regular bookkeeping reviews help you understand your tax obligations and plan ahead.
Modern Accounting for UK Small Businesses
Managing finances as a small business owner or contractor in the UK can be complex. From compliant HMRC tax returns to managing daily bookkeeping and payroll, Ostoya provides a digital-first solution that saves you time.
We support businesses using Xero and QuickBooks and agree the software access, setup and responsibilities as part of the written scope. Our English and Polish support is available from Swaffham and remotely across the UK.