| mpno | person number |
| mficode | income receipt code |
| mfrall | received payment each month |
| mfr01 | payment received in september 2002 |
| mfr02 | payment received in october 2002 |
| mfr03 | payment received in november 2002 |
| mfr04 | payment received in december 2002 |
| mfr05 | payment received in january 2003 |
| mfr06 | payment received in february 2003 |
| mfr07 | payment received in march 2003 |
| mfr08 | payment received in april 2003 |
| mfr09 | payment received in may 2003 |
| mfr10 | payment received in june 2003 |
| mfr11 | payment received in july 2003 |
| mfr12 | payment received in august 2003 |
| mfr13 | payment received in september 2003 |
| mfr14 | payment received in october 2003 |
| mfr15 | payment received in november 2003 |
| mfr16 | payment received in december 2003 |
| mfr17 | payment received in january 2004 |
| mfr18 | payment received in february 2004 |
| mfr19 | payment received in march 2004 |
| mfr20 | payment received in april 2004 |
| mfrnow | is still receiving payment |
| mfrval | last amount received |
| mfrw | weeks covered by last amount received |
| mfrjt | last payment: sole or joint recipient |
| mfrjtpn | pno of joint recipient |
| mfim09l | estimated income in september 2002 |
| mfim10l | estimated income in october 2002 |
| mfim11l | estimated income in november 2002 |
| mfim12l | estimated income in december 2002 |
| mfim01t | estimated income in january 2003 |
| mfim02t | estimated income in february 2003 |
| mfim03t | estimated income in march 2003 |
| mfim04t | estimated income in april 2003 |
| mfim05t | estimated income in may 2003 |
| mfim06t | estimated income in june 2003 |
| mfim07t | estimated income in july 2003 |
| mfim08t | estimated income in august 2003 |
| mfim09t | estimated income in september 2003 |
| mfim10t | estimated income in october 2003 |
| mfim11t | estimated income in november 2003 |
| mfim12t | estimated income in december 2003 |
| mfim01n | estimated income in january 2004 |
| mfim02n | estimated income in february 2004 |
| mfim03n | estimated income in march 2004 |
| mfim04n | estimated income in april 2004 |
| mfrjtvf | joint receipt verification flag |
| mfrvali | imputation flag – mfrval (base) |
| pid | cross-wave person identifier |
| pidp | Cross-wave person identifier (UKHLS) |
| mhid | household identification number |
| mfiseq | income receipt sequence number |