ANYONE HAS KNOWLEDGE ABOUT INCOME TAXATION?

1. Mr. A operates convenience store and offers bookkeeping services to her clients. In 2018. her gross saies amounted to 300000. in addition to her receipts from bookkeeping services of P300000 She signied her intention to be taxed at 0% in her initial quarter return. HoinI much is the tax due? 2. Mr. a. above failed to signify her intention to be taxed at 3% income tax rate on gross sales in her initial Quarterly Income Tax Return. and she incurred cost of sales and operating expenses amounting to P600000 and P200000 respectively. how much is his income tax due? How much is his business tax due? 3. Mr. E! is an architect. Since his career flourished. her total gross receipts amounted to P4.250000 for taxable year 2013. His recorded cost of service and operating expenses were P0150000 and P1,000.000 reSpectively. How much is the income tax clue? 4. Mr. 0, a cashier of] Eompany. Earned annual compensation in 2010 of P1500000, inclusive of 13th month and other benefits in the amount of P120000 but net of mandatory contributions to 555, Fhilhealth and Pagibig. Aside from employment income. he owns a convenience store. with gross sales of P1400000. His cost of sales and operating expenses are P1.000000 and P000000 respectively. and with non-operating income of P100000. How much is his income tax due if he did not opt to be taxed at 3%? 5. Refer to the previous question. but this time. Mr. D opted to be taxed at 8%. How much is the income tax due