Overstay Risk Calculator

About this calculator

The Overstay Risk Calculator explains potential immigration consequences when UK permission has expired or may expire soon. It is designed to help users understand urgency, possible re-entry risk, and why dates matter. Overstaying can have serious consequences, and this page should be used as a prompt to check official guidance or get advice quickly.

Methodology

The calculator compares visa expiry and departure or current dates to estimate the number of days without valid permission.

• Potential overstay days = departure or current date - visa expiry date

How to use the Overstay Risk

1. Enter the main value or details requested by the calculator.
2. Check the unit, date, rate, or category selected before calculating.
3. Review the result and any supporting breakdown shown on the page.
4. Change one input at a time if you want to compare scenarios.
5. Keep the result with the source record if you need to refer back to it later.

Worked example

How to read the result

Inputs worth checking

Dates and periods

Dates, billing periods, tax years, academic years, and deadline periods can change the result. Make sure the period entered matches the document or question you are checking.

Rates and thresholds

Where rates, thresholds, tariffs, or grade boundaries are involved, use the current source rather than an old note or rounded memory.

Rounding

Small differences are normal when a calculator rounds intermediate steps differently from a bill, statement, payslip, or official table.

Frequently asked questions

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What happens if you overstay a UK visa?

Overstaying a UK visa, meaning remaining in the UK beyond the expiry date of your leave, has serious consequences. These include being recorded as an overstayer, re-entry bans ranging from 2 to 10 years, and mandatory disclosure on all future visa applications. The consequences depend on how long you overstayed and whether you left voluntarily or were removed.

What is a re-entry ban?

A re-entry ban prevents you from entering or applying for entry to the UK for a specified period. Bans of 2, 5, or 10 years apply depending on the length of the overstay for those who left voluntarily on or after 6 April 2017. If you were removed by the Home Office, a 5-year ban typically applies. Deportation orders carry a minimum 10-year ban.

Do I have to disclose an overstay?

Yes. Any overstay, even one of a few days, must be declared on all future UK visa applications. This includes visitor visas, work visas, and family visas. Failing to disclose an overstay is treated as deception and can result in a 10-year ban regardless of the original overstay length. Always disclose honestly.

What if I am currently overstaying?

If you are currently in the UK past your visa expiry date, your options and the consequences depend on how long you have been overstaying. Leaving voluntarily before you are removed generally results in a shorter ban. Seeking advice from a regulated immigration adviser as early as possible gives you the most options.

Can a re-entry ban be challenged?

In limited circumstances, a re-entry ban can be challenged or curtailed. For example, this may apply if you have a genuine family life in the UK protected under Article 8 of the European Convention on Human Rights, or if the ban would cause disproportionate harm. These are complex legal arguments and require specialist advice.