Previous pay stubs I suppose. Depending on the employer you may have something in writing. This typically wouldn’t be contract if you’re an employee without a union.
Someone does some digging and figures it out, and maybe five or so years later you get a check in the mail for an amount the lawyers agreed was correct.
So if the employer suddenly decides to e.g. start paying you less, how do you prove how much your pay should be?
There is nearly always a contract and the business will submit tax paperwork with your compensation to the IRS.
Under the table workers are illegal and on their own
Previous pay stubs I suppose. Depending on the employer you may have something in writing. This typically wouldn’t be contract if you’re an employee without a union.
Someone does some digging and figures it out, and maybe five or so years later you get a check in the mail for an amount the lawyers agreed was correct.