Income · 7 min read
Preparing with one year of self-employed accounts
In short
No source we consulted sets a minimum number of years of self-employed accounts for a mortgage, so we do not state one and we do not name lenders who might accept fewer. What we can tell you is what exists and what it evidences. HMRC provides evidence of earnings — an SA302 tax calculation — for the last four years, and says these may be requested as evidence of income, for example when a self-employed person applies for a mortgage. With one year of trading you have one year of that evidence. MCOB 11.6 requires a lender to obtain evidence of the income it takes into account; how much history it wants is its own policy.
Who this is for
- Sole traders and directors in their first or second year of trading
- People who have moved from employment into self-employment recently
- Anyone told a fixed number of years is required and wanting to know the source
Key points
There is no universal number of years
MCOB 11.6 imposes an evidence duty, not a history requirement. No government or regulator source we checked states a minimum trading period.
HMRC records go back up to four years
GOV.UK states you can get evidence of your earnings — an SA302 — for the last four years, and names applying for a mortgage when self-employed as an example of when they may be requested.
One year is one data point
The practical limitation is not a rule but arithmetic: a single period shows a level, not a trend. Being able to describe what the period represents, and why, is the preparation that is available to you.
The tax year and your trading period may not align
When you started trading, when your accounting period ends, and when a tax return was filed are three different dates. Knowing all three prevents confusion later.
Supporting records exist beyond the tax calculation
Business bank statements, invoices, contracts and any accountant-prepared accounts describe the same year from different angles. What is wanted varies by lender.
We will not tell you who accepts what
This site does not publish lender criteria, compare lenders or recommend products. A suitably qualified FCA-authorised mortgage adviser can discuss the market with you.
Exceptions and things that vary
- Sole traders, partners and company directors have different records. See the salary and dividends guide if you take income from your own company.
- Where you were previously employed in the same field, that history exists in a different form. Whether it is relevant is a lender question.
- A tax calculation is only available once a return has been filed and processed. Timing matters.
How to work through it
Confirm your key dates
Our suggestion: write down the date you started trading, your accounting period end, and the date your first return was filed.
Download what HMRC holds
Our suggestion: obtain your tax calculation and tax year overview for each year available, and save copies where you can find them again.
Organise the supporting records for that year
Our suggestion: business bank statements, invoices, contracts and any prepared accounts, kept together and in order.
Write a plain description of the year
Our suggestion: a short factual account of what you do, how work comes in, and anything unusual about the period. Facts, not projections.
Ask what evidence and period are needed
Our suggestion: ask a suitably qualified FCA-authorised mortgage adviser what evidence would be required for your structure and history. That question has no general answer.
Illustrative example (not a real case)
Imagine someone who left employment fourteen months ago and has filed one return. They note the trading start date, the accounting period, the filing date, download the tax calculation and overview, and gather statements and invoices for the same period. They have not made a year into two years — they have made one year fully evidenced and describable. Illustrative only.
Illustrative only. Figures and situations in examples are made up to show a method. They are not typical, not a benchmark and not a prediction of any outcome.
What not to assume
- Do not assume any specific number of years is required. No source we cite states one.
- Do not assume an accountant is required. Nothing we cite says so.
- Do not assume waiting automatically improves your position.
- Do not assume employment history before self-employment counts, or does not.
- Do not assume this page predicts any lender's response.
Questions for a qualified adviser
We cannot answer these for you, and we do not introduce or recommend advisers. Take them to a suitably qualified FCA-authorised mortgage adviser of your own choosing.
- What evidence of self-employed income would you need for my structure?
- How would you like my first trading year documented?
- Is there anything about my previous employment history you would want recorded?
- What are the timing implications of my accounting period and filing dates?
Build my document checklist
A printable starting list of the paperwork commonly requested.
Related reading
A resource that may help you organise the next step
Optional educational preparation resources. Nothing here is mortgage advice, a lender or product recommendation, an eligibility assessment or a prediction of whether an application would be accepted.
- Mortgage Preparation Starter Checklist — free
A one-page starting point for the paperwork most people are asked for.
- Readiness checker
Eight broad preparation questions. It never says whether you would be eligible, approved or declined.
- Self-Employed Mortgage Preparation Organiser — £7.99
A preparation resource, not mortgage advice or a lender recommendation. Purchases are not switched on yet.
Sources
No statistic, regulator citation or third-party claim is published until its source is verified. Unverified entries are shown as placeholders.
Written by
Before You Apply editorial
Written by the publisher's editorial function, not by a named individual and not by a mortgage adviser. Before You Apply is not FCA authorised.
Reviewed by
Independent reviewer — to be appointed
No independent reviewer has been appointed yet. No review, qualification, FCA status or endorsement is claimed for this content.
- Last fact-checked 2026-08-30
- Not yet independently reviewed
- Next review due 2027-02-28
Disclosure: this guide is educational. Before You Apply receives no payment for mentioning any lender, product or firm, and none are named.
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