A sole trader who advises, designs, writes, codes or certifies carries the same professional exposure as a large firm and none of its protection. There is no company to absorb a claim and no in house lawyer to answer it, so the policy does both jobs: it pays the claim and it funds the defence. What catches sole traders out is not the cover itself but the basis it is written on.
The trap in claims made cover for a one person business
Professional indemnity answers for claims made while the policy is live, whatever year the work was done. A sole trader who takes a contract, finishes it, has a quiet year and cancels the policy has no cover for the finished work, because there is no live policy for a claim to be made against. This is the single most common uninsured position among self employed professionals, and it happens precisely when money is tight.
Retroactive dates, and changing insurer
When you move insurer, the new policy has a retroactive date. If it is set at the switch rather than at the start of your trading, every earlier year becomes uninsured on the day you move. Ask for the retroactive date to match your first policy, and check it on the schedule rather than assuming, because a cheaper renewal with a later retroactive date is not the same product.
Choosing a limit without a big client to tell you
Corporate and public sector contracts name a figure. A sole trader working for small businesses often has nobody naming one, and the useful question is what a client could lose if your work was wrong rather than what you charge. A bookkeeper whose error triggers a penalty, a designer whose specification causes a reprint, a consultant whose forecast underpinned a purchase: the loss is the client's, not a multiple of the fee.
Run off, at the end
When a sole trader retires or incorporates, the claims do not stop. Run off cover keeps a policy in force for a period afterwards, and it is cheaper and simpler to arrange with the existing insurer at a renewal than to find it after the business has closed. Anybody planning to stop within the next year should ask about it at the next renewal rather than the last.
Questions people ask about sole trader professional indemnity insurance
Do sole traders need professional indemnity insurance?
No statute requires it outside regulated professions, and client contracts frequently do. For anybody whose clients rely on their advice or output it is the cover that answers the most likely claim, because the loss is financial rather than physical.
Can I cancel professional indemnity when a contract ends?
You can, and it leaves the finished work uninsured, because the policy that answers is the one live when a claim is made. Continuous renewal, and run off cover at the end of trading, is what keeps past work covered.
What is a retroactive date?
It is the date from which the policy will answer for work done. If it is set at the start of a new policy rather than at the start of your trading, everything you did before becomes uninsured. Check it whenever you change insurer.
How much cover does a sole trader need?
The client contract names a figure where there is one, commonly one, two or five million pounds. Where none does, size it against what a client could lose rather than against your fee, and check whether defence costs sit inside or outside the limit.