Central government employees should get the revised wages and allowances of a new pay commission from the next day of the end of the previous commission. But in reality, it may take months to years to implement new pay commission wages, as the lengthy procedure includes discussions with various stakeholders and approvals at the government’s top levels. However, irrespective of the delay in the implementation of a pay commission, central government employees get arrears for the delayed months.For example, if the 8th Pay Commission’s report is notified in June 2027, employees will get arrears for 18 delayed months. A notification at a later date will lead to arrears for a longer period. But how much arrears can Level 4-7 employees get at different fitment factors?Arrears that central government employees get in a pay commissionMost central government employees get basic pay, dearness allowance (DA), house rent allowance (HRA) and transport allowance (TPTA) as part of their salary components. But do they get arrears for all components?Arrears on basic pay in 8th Pay CommissionThe fitment factor is applied to the existing basic pay of an employee. As a result, employees get arrears on basic salary in a new pay commission. An 18-month delay means basic salary arrears for 18 months.Arrears on dearness allowance in 8th Pay CommissionThe government announces the DA twice a year based on the consumer price index reading. Since the DA is adjusted as per rising inflation twice a year, the government doesn’t provide any arrears on it.Arrears on HRA in 8th Pay CommissionThe government announces HRA rates in every pay commission. For the 7th Pay Commission, these rates were 8%, 16% and 24% of basic pay for Z, Y and X-category cities, but they increased to 10%, 20 and 30%, respectively, when DA reached 50% in January 2024. HRA is a percentage part of the basic salary and increases automatically when the basic pay in a new pay commission is revised. Past practices suggest that the government doesn’t provide arrears for HRA.Arrears on transport allowance in 8th Pay CommissionTransport allowance (TPTA) charges are fixed in every pay commission, but they also increase with DA. For example, if an employee has Rs 1,800 as the fixed charge for their TPTA, they will get Rs 1,800+ DA (%) of Rs 1,800. Since the TPTA amount increases with every DA hike, the government doesn’t provide arrears on transport allowance.Hence, basic pay is the component central government employees get arrears for. But how much? Let’s see estimates for Level 4-7 employees at 2.0, 2.15, 2.28 and 2.57 fitment factors, assuming that the 8th Pay Commission will be delayed for 20 months.Estimated arrears for Level 4-7 employees at 2.0 fitment factor Level Current Basic (₹) Revised Basic (₹) Increase in Basic (₹) Arrears for 20 Months (₹) Increase Multiple 4 25,500 51,000 25,500 5,10,000 20 5 29,100 58,200 29,100 5,82,000 20 6 35,400 70,800 35,400 7,08,000 20 7 44,900 89,800 44,900 8,98,000 20 Estimated arrears for Level 4-7 employees at 2.15 fitment factor Level Current Basic (₹) Revised Basic (₹) Increase in Basic (₹) Arrears for 20 Months (₹) Increase Multiple 4 25,500 54,825 29,325 5,86,500 23 5 29,100 62,565 33,465 6,69,300 23 6 35,400 76,110 40,710 8,14,200 23 7 44,900 96,535 51,635 10,32,700 27 Estimated arrears for Level 4-7 employees at 2.28 fitment factor Level Current Basic (₹) Revised Basic (₹) Increase in Basic (₹) Arrears for 20 Months (₹) Increase Multiple 4 25,500 58,140 32,640 6,52,800 26 5 29,100 66,348 37,248 7,44,960 26 6 35,400 80,712 45,312 9,06,240 26 7 44,900 1,02,372 57,472 11,49,440 30 Estimated arrears for Level 4-7 employees at 2.57 fitment factor Level Current Basic (₹) Revised Basic (₹) Increase in Basic (₹) Arrears for 20 Months (₹) Increase Multiple 4 25,500 65,535 40,035 8,00,700 31 5 29,100 74,787 45,687 9,13,740 31 6 35,400 90,978 55,578 11,11,560 31 7 44,900 1,15,393 70,493 14,09,860 36 However, these are just estimates; the real amount of arrears for Level 4-7 central government employees will be known only after the government notifies the rates.