Under normal circumstances, the other insurance company will calculate it according to your payroll and labor contract before injury, and the lost time fee = lost time fee * unit fixed salary and bonus. In the process, other insurance companies may check your salary bank, social security agency and tax department. But in any unit, there is only one tax invoice for personal income tax, and not everyone has a tax-paid invoice. So it's hard for you to take out the tax payment certificate. You can only take out your own payroll and ask the company to print out the details of your salary payment in the last year to three years, with tax deduction records and official seals.

If the other party can't agree with the basis you provided, you really can't provide more accurate evidence. According to the provisions of the Supreme Law on individual compensation, if there is no fixed income, it shall be calculated according to the average income in the last three years; If the victim can't provide evidence to prove his average income in the last three years, he can refer to the average salary of employees in the same industry or similar industries where the Court of Appeal is located in the previous year.

However, if your income level exceeds the local average wage, you'd better do everything possible to let the company provide you with evidence (they also have this obligation); If your income level is lower than the local average wage, let them refer to the Supreme Law to compensate you.

At the same time, if it is a serious fracture, it is also necessary to go to the judicial appraisal (if it is not work-related injury) for disability rating, and the amount of compensation for each level is clearly defined.

If you have a car accident on your way to and from work, according to the new social security law, you are injured at work, so your unit is also responsible for you.