Two elections, two deadlines, sixteen days apart

An 83(b) election is a choice to be taxed on restricted shares when they change hands rather than when they vest. The charge falls on the value at transfer, less anything paid for the shares.

That valuation ignores restrictions which will never lapse. The point is to fix the charge early, while the number is small.

Without an 83(b) election the tax on restricted shares arrives later, measured on the value at vesting. For a company that grows, that is a far larger figure than the one at the start.

The charge lands as ordinary income rather than as a gain, and the clock for capital treatment starts only then. Both consequences work against the holder.

Our note on employee share schemes covers the wider position across plan types.

So doing nothing is itself a decision. It is just a decision made by default rather than on the numbers.

An 83(b) election must reach the Internal Revenue Service no later than thirty days after the restricted shares change hands. The regulation also allows filing before the transfer date, which removes the risk entirely.

Thirty days means thirty days. There is no extension, no reasonable cause relief and no late filing.

The statement goes to the office where the service provider files their return, and a copy goes to the employer.

So file early rather than on day twenty-nine. Posting delays have cost people the whole election.

More than people expect. The regulation asks for the taxpayer's name, address and identification number, a description of the restricted shares, the transfer date and the tax year, and the nature of every restriction.

It also wants the fair market value at transfer, set without regard to any lapsing restriction, and whatever was paid for the shares.

A statement confirming that the required copies went to the other parties belongs there too. The signature is the filer's own.

So draft it alongside the share paperwork, not afterward. Every figure it wants comes from documents the company already holds.

A section 431 election does the job an 83(b) election does in America, ignoring the restrictions so tax falls on the unrestricted value at acquisition. HMRC's manual sets out the mechanics.

The window runs fourteen days from the date the restricted shares are acquired, which is less than half the American one. The two clocks start together and finish far apart.

It is also a joint election, made by the employee together with the employer, on a form HMRC approves. The legislation carries the rule itself.

So the British one needs the company's cooperation and the company's calendar. That dependency is what makes it the harder of the two to land.

Usually yes, and treating one as covering the other is the mistake that costs the most. The elections live in different legal systems and neither recognises the other, so making one leaves the other country's default treatment fully in place.

An American working in Britain faces both charges on the same restricted shares. An 83(b) election on its own leaves a British charge sitting at vesting on a bigger number.

The reverse is equally unhelpful. A section 431 election with no American filing means British tax now and American tax later.

So decide them together and file them separately. One analysis, two submissions.

Take an American engineer who joins a London company and buys founder shares at their nominal value. The unrestricted value is close to the price paid, so the charge on electing is small in both countries.

She files the British election within fourteen days, jointly with her employer, and the American one within thirty. Both charges land on a figure close to nothing.

Four years later the shares vest and the company is worth a great deal. Neither country charges income tax on that growth, because both elections moved the charge to the start.

Had she skipped both, the same growth would have been ordinary income in two countries at once. The relief for that overlap is messier than the elections were.

Then the tax paid at the start on the restricted shares is largely gone, and that is the honest risk in the whole arrangement. The regulation is explicit that a forfeiture brings no deduction, so somebody who leaves before vesting has paid tax on shares they no longer hold.

The amount at stake is small where the shares were worth little on day one. That is precisely why the election suits an early-stage company and suits a later-stage one far less.

A capital loss may arise on what was actually paid for the shares, which is a different and narrower relief.

So size the downside before filing. The question is what the tax costs if everything goes wrong, not what it saves if everything goes right.

Hardly ever on the American side. Revocation needs the Commissioner's consent, and consent is confined to cases where the person was under a mistake of fact about the underlying transaction, with the request made within sixty days of learning of it.

A mistake about what the shares were worth does not count. Neither does a fall in value afterward.

A failure to do something everybody expected at the time will not open the door either. The grounds are narrower than they first sound.

So treat the filing as permanent. The time for doubt is before it goes in the post.

Both elections turn on what the restricted shares are worth, and an early-stage private company has no market price to point at. Somebody has to arrive at a defensible figure and keep the working.

The British unrestricted value and the American fair market value are not defined identically, so one number may not serve both. Check rather than assume.

Currency adds a further step, since the two returns report in different money. Our note on which rate to use covers that.

So commission the valuation before the clock starts. Fourteen days is not long enough to produce one from scratch.

Restricted stock units are not restricted shares, and that difference decides everything here. No property changes hands at grant, so the election has nothing to attach to.

The charge on units arrives when they settle, and no election moves it forward. Our note on restricted stock units covers how they work across the two systems.

Growth shares and hurdle shares are a third category again, common in British companies and rare in American ones. Our note on UK company ownership covers the structures those sit inside.

People use the two terms interchangeably in conversation and the paperwork rarely does. Read the plan rather than the email about it.

So establish which instrument is actually in play first. The whole analysis turns on that distinction.

The amount elected on counts as compensation, so it belongs in income for that year and the employer's payroll usually picks it up. Publication 525 covers how compensation of this kind is treated.

Basis in them then covers what was paid plus what was taxed. Getting that right is what preserves the benefit on an eventual sale.

The British side runs its own reporting through the employer's annual return for employment-related securities. Those are separate filings with separate deadlines.

So record the basis figure somewhere durable. It matters years later, when nobody remembers the election.

Issue the shares properly, record the date, and have a value ready. None of that is the employee's to control, and all of it drives the deadline.

The British election needs a signature from the employer on HMRC's approved form. A company that has never issued shares to an American may not know the form exists.

Payroll then has to reflect the charge in the right period, in the right country, on the right figure.

So raise it with the company early. A founder negotiating an offer has more leverage than an employee chasing a signature in week two.

The first is missing the fourteen-day British window while concentrating on the American one. The shorter deadline is the binding constraint.

The second is assuming the employer handles it. The British election is joint, which means the employee has to chase it rather than wait.

The third is electing on restricted shares that are already valuable. The arithmetic that makes this attractive depends on a low starting number.

A fourth is losing the paperwork. Years later the only evidence that tax was paid at the start may be a copy of the statement.

We start from the plan documents, because the instrument decides which elections exist at all. That takes an afternoon and prevents most of the expensive errors.

Then we run the numbers both ways in both countries, including the case where the shares come to nothing.

Our US federal returns work covers the American filing and the basis records that follow it, and you can get in touch in the first fortnight rather than the second.

So involve somebody at the offer stage. After thirty days there is nothing left to advise on.