Q1. Bill never files his 2022 tax return. When will the statute of limitations for IRS assessment on Bill's 2022 tax return end?

Q2. Bill filed his 2022 tax return on March 15th, 2023. He accidentally omitted 30% of his gross income on the return. When will the statute of limitations for IRS assessment on Bill's 2022 tax return end?

Q3. Bill filed his 2022 tax return on March 15th, 2023. When will the statute of limitations for IRS assessment on Bill's 2022 tax return end?

Q4. Bill filed his 2022 tax return on May 15th, 2023. However, Bill does not pay his actual tax liability and the associated penalties until June 3, 2024. When will the statute of limitations for Bills filing of a refund claim end?